Matou te iloa uma e iai lanu eseese e tusa ai ma fusi eseese.O le malamalama o se galu electromagnetic, e tusa ai ma lona umi galu, lea e mafai ona vaevaeina i le malamalama ultraviolet (1nm-400nm), malamalama vaaia (400nm-700nm), moli lanumeamata (490 ~ 560nm), moli mumu (620 ~ 780nm) ma malamalama infrared. (700nm a...
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